These Sylvania brand 9-inch 6W T5 linear fluorescent tubes with a G5 cap type are commonly used under kitchen cabinets, garages, office buildings and many other public areas these slimline triphosphor tubes triple coating ensure increased light levels and extended lamp life.With an improved CRI rating and a colour temperature of 4000 Kelvin these long-life tubes have an average rated life of 8000 hours.Please note that this light bulb will operate with most AC and DC 12V transformers. However, some 12V transformers may have a minimum required load which may not be met when installing low powered LEDs: these drivers may cause flickering or the LEDs not to function correctly. If this issue arises it may be necessary to source a suitable LED driver. Please refer to the manufacturers website for compatibility.Need more help in choosing a suitable fluorescent tube? Read our guide Choosing Flourescent Tubes and our guide to Flourescent Starters.